Disk resident split data sector information management system on

Details Disk resident split data sector information management system on Disk resident split data sector information management system on

1997-03-31

1999-10-05

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 53, 360 7708, G11B 509, G11B 5596

Patent

active

059633867

ABSTRACT:
A disk resident system for managing split data sector information in a headerless format magnetic disk device. The split data sector information is stored in a split data sector information field that is recorded in available areas within a headerless disk format such as the gaps within the headerless disk format or in available space within disk administration fields. Preferred areas within a headerless disk format include the gap immediate preceding a servo burst, the gap immediately following a servo burst, or within the servo burst itself, so that the split data sector information is readily available at the time the servo burst is read and interpreted. Information in a split data sector information field can include various combinations of the number of bytes in a split data sector segment that follows a first servo burst, the number of fixed length full data sectors between the first servo burst and an adjacent second servo burst, and the number of bytes in a split data sector segment that follows the second servo burst. Any split data sector information not expressly represented in a split data sector information field can be calculated because the number of bytes between a pair of adjacent servo bursts is known. Overlapping split data sector information in successive split data sector information fields can be used for look-ahead purposes or data integrity purposes. A split data sector information field can also be accompanied by an ECC type field for data integrity check purposes.

REFERENCES:
patent: 5422763 (1995-06-01), Harris
patent: 5523903 (1996-06-01), Hetzler et al.
patent: 5740358 (1998-04-01), Geldman et al.
patent: 5754351 (1998-05-01), Kuen et al.
patent: 5802584 (1998-09-01), Kool et al.

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